Margin of Error

Problem

Return the margin of error z * sigma / sqrt(n) for a mean with known sigma. Return 0.0 when n <= 0.

Hint

It is the half-width of the confidence interval.

case 1

in: [1.96,2,100]

expected: 0.392

case 2

in: [1.645,10,25]

expected: 3.29

case 3

in: [2,0,10]

expected: 0

case 4

in: [1.96,5,0]

expected: 0

case 5

in: [1,1,1]

expected: 1

Starter codePython

def margin_of_error(z_crit, sigma, n):
    # Your code here
    pass

5 test cases · run your code against them in the editor